/*
 * Copyright (C) 2005 Luca Veltri - University of Parma - Italy
 *
 * This file is part of MjSip (http://www.mjsip.org)
 *
 * MjSip is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * MjSip is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with MjSip; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * Author(s):
 * Luca Veltri (luca.veltri@unipr.it)
 */

package org.zoolu.net;


import java.net.DatagramPacket;
//import java.net.InetAddress;


/** UdpPacket provides a uniform interface to UDP packets,
 * regardless J2SE or J2ME is used.
 */
public class UdpPacket
{
    /** The DatagramPacket */
    DatagramPacket packet;


    /** Creates a new UdpPacket */
    UdpPacket(DatagramPacket packet)
    {  this.packet=packet;
    }
    /**Gets the DatagramPacket */
    DatagramPacket getDatagramPacket()
    {  return packet;
    }
    /**Sets the DatagramPacket */
    void setDatagramPacket(DatagramPacket packet)
    {  this.packet=packet;
    }


    /** Creates a new UdpPacket */
    public UdpPacket(byte[] data)
    {  packet=new DatagramPacket(data,data.length);
    }

    /** Creates a new UdpPacket */
    public UdpPacket(byte[] data, IpAddress ipaddr, int port)
    {  packet=new DatagramPacket(data,data.length,ipaddr.getInetAddress(),port);
    }

    /** Creates a new UdpPacket */
    public UdpPacket(byte[] buf, int length)
    {  packet=new DatagramPacket(buf,length);
    }

    /** Creates a new UdpPacket */
    public UdpPacket(byte[] buf, int length, IpAddress ipaddr, int port)
    {  packet=new DatagramPacket(buf,length,ipaddr.getInetAddress(),port);
    }

    /** Creates a new UdpPacket */
    public UdpPacket(byte[] buf, int offset, int length)
    {  packet=new DatagramPacket(buf,offset,length);
    }

    /** Creates a new UdpPacket */
    public UdpPacket(byte[] buf, int offset, int length, IpAddress ipaddr, int port)
    {  packet=new DatagramPacket(buf,offset,length,ipaddr.getInetAddress(),port);
    }

    /** Gets the IP address of the machine to which this datagram is being sent or from which the datagram was received. */
    public IpAddress getIpAddress()
    {  return new IpAddress(packet.getAddress());
    }

    /** Gets the data received or the data to be sent. */
    public byte[] getData()
    {  return packet.getData();
    }

    /** Gets the length of the data to be sent or the length of the data received. */
    public int getLength()
    {  return packet.getLength();
    }

    /** Gets the offset of the data to be sent or the offset of the data received. */
    public int getOffset()
    {  return packet.getOffset();
    }

    /** Gets the port number on the remote host to which this datagram is being sent or from which the datagram was received. */
    public int getPort()
    {  return packet.getPort();
    }

    /** Sets the IP address of the machine to which this datagram is being sent. */
    public void setIpAddress(IpAddress ipaddr)
    {  packet.setAddress(ipaddr.getInetAddress());
    }

    /** Sets the data buffer for this packet. */
    public void setData(byte[] buf)
    {  packet.setData(buf);
    }

    /** Sets the data buffer for this packet. */
    public void setData(byte[] buf, int offset, int length)
    {  packet.setData(buf,offset,length);
    }

    /** Sets the length for this packet. */
    public void setLength(int length)
    {  packet.setLength(length);
    }

    /** Sets the port number on the remote host to which this datagram is being sent. */
    public void setPort(int iport)
    {  packet.setPort(iport);
    }

    /** Makes a copy of a given UdpPacket. */
    public void copy(UdpPacket udp_pkt)
    {  setData(udp_pkt.getData(),udp_pkt.getOffset(),udp_pkt.getLength());
        setLength(udp_pkt.getLength());
        setIpAddress(udp_pkt.getIpAddress());
        setPort(udp_pkt.getPort());
    }

}
